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Printing spacers on LCD substrates

A technology of spacers and substrates, applied in printing, printing machines, rotary printing machines, etc., can solve problems such as waste, loss, and increased costs, and achieve the effect of reducing production costs and reducing waste

Inactive Publication Date: 2007-08-01
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using a trimming squeegee to force spacer ink into the receiving grooves of the printing plate, a substantial portion of the excess spacer ink that is not pressed into the grooves is wiped off the surface of the plate, and is thus lost or wasted
This waste of spacer ink adds to the cost of the process in which the spacer ink is used, and thus increases the cost of producing an LCD using that process

Method used

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  • Printing spacers on LCD substrates
  • Printing spacers on LCD substrates
  • Printing spacers on LCD substrates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] 1 is a schematic partial cross-sectional side view of an exemplary embodiment of a spacer ink printing apparatus 100 for a liquid crystal display substrate according to the present invention. As shown in the drawing, the first exemplary embodiment of the printing apparatus 100 includes: a main body 110 , a pressing roller 120 , a spacer ink guiding part 130 and a spacer ink removing part 140 . During operation, the device 100 is moved on the printing plate 200 to force the spacer ink 50 mixture previously sprayed on the printing plate 200 to uniformly enter each of the plurality of receiving grooves 210 on the printing plate 200 Inside. The spacer ink mixture 50 includes a liquid ink 52 having a constrained viscosity and a plurality of rigid spherical spacers 54 randomly dispersed in the liquid ink 52 .

[0016] The pressing roller 120, the spacer ink guide part 130 and the spacer ink removing part 140 are combined in the apparatus main body 110 so as to move together ...

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PUM

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Abstract

A spacer ink printing apparatus for printing spacers on an LCD substrate includes a main body, a pressing roller and a spacer ink removing portion. The apparatus may further include a spacer ink guiding portion and / or a spacer ink spreading portion. The pressing roller is combined with the main body and rotates so as to press a spacer ink sprayed onto a printing plate into each of a plurality of receiving recesses of the printing plate. The spacer ink removing portion is combined with the main body and serves to remove any excess spacer ink from the printing plate, thereby reducing wasted spacer ink and decreasing the manufacturing cost of LCDs produced with the apparatus.

Description

technical field [0001] The present invention relates to an apparatus for printing a spacer on a liquid crystal display substrate, and a production method of a liquid crystal display panel using the apparatus to reduce production costs. Background technique [0002] A typical liquid crystal display includes: a liquid crystal display panel to display images using light transmittance of a liquid crystal material layer included in the panel; and a backlight assembly disposed under the panel for providing light to the panel. [0003] The liquid crystal display panel includes: a first substrate provided with a plurality of switching elements, such as thin film transistors (TFT); a second substrate facing the first substrate and provided with a plurality of color filters; a liquid crystal layer arranged on the first substrate between the first and second substrates; seal lines, formed between the first and second substrates, around their respective peripheries, to seal the liquid c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1339G02F1/1333
CPCG02F1/13394G02B5/201H01L27/1292G02F1/13392G02F1/1303G02F2001/13398B41F17/00G02F1/13398E02D5/76E02D5/80E02D2600/30
Inventor 徐奉成朴昭妍许政旭
Owner SAMSUNG ELECTRONICS CO LTD